/Engine/Source/Runtime/AssetRegistry/Public/AssetRegistry/IAssetRegistry.h
Scan the supplied paths recursively right now and populate the asset registry. If bForceRescan is true, the paths will be scanned again, even if they were previously scanned
void ScanPathsSynchronous ( const [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & InPaths, bool bForceRescan, bool bIgnoreDenyListScanFilters )